Training Nutrition Tips – PROTEIN
In the last 10 years protein research has gone through the roof and we now know much more about how protein affects performance. Lets look at a few key statements that are common misconceptions.
Everyone needs more protein in their diet.
Most people in everyday society meet their protein intake without any trouble and in fact most athletes meet their requirements just by eating the large volume of food they require to train. It is a common misconception that a person training needs to eat more protein. The average recreational endurance trained athlete only requires ~0.8-1.2g of protein per kg body weight per day. The average person only requires ~0.8g per kg per day. Trained endurance athletes need up to 1.6g.kg-1 due to their higher training loads. This is pretty much an accepted fact now in the scientific community.
All protein is the same.
This is definitely not true. Protein is made up of 23 different amino acids, which are the building blocks of protein. Of those only eight are essential. That is they can not be made in the body and humans rely on food sources that contain these essential amino acids to survive. Based on this, certain proteins are often referred to as high biological value proteins. High biological value proteins are those that contain all 8 essential amino acids. These are usually animal proteins from sources like eggs, and dairy products.
The timing of protein is not important, an athlete just needs more.
This is definitely not true especially in athletes trying to bulk up or increase lean muscle mass. Timing of protein intake is extremely important. Consuming protein around exercise has greater benefits than taking it away from training like before bed or first thing in the morning. The amount may not be as important and small amounts of as little as 10-20g of protein pre and post exercise may be all that is necessary to maximise the growth and repair response. Research has also show that by including protein in your recovery nutrition, markers of muscle damage are reduced. This is a large benefit as it is often muscle damage that is associated with the inability to train hard day after day.
Protein enhances endurance performance.
There is mixed evidence in the scientific literature in regards to the need of protein during endurance exercise. From a performance point of view if carbohydrate intake during endurance exercise is suitable then protein intake will not enhance performance.
Enjoy the Brain Food
Again let me know what you think or what you would like to hear about next time.
Eat up the Road.
Greg Shaw, Australian Institute of Sport, Sports Dietitian
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